Drain cleaner



E. A. NAGEL DRAIN CLEANER Nov. 3, 1936.

2 Sheets-Sheet 1 Filed March '7, 1936 /yji,

Invenlor s s s s s A" N w mW/ E. A. NAGEL v DRAIN CLEANER Nov. 3, 1936.

2 Sheets-Sheet 2 Filed March 7. 1936 ffy-5.

nvenlor Patented Nov. 3, 1936 UNITED STATES `PATEN'I OFFIQE Ernest A. Nagel, Meadville, Pa. Application March 7, 1936, Serial No. 67,714

3 Claims.

The present invention relates to new and useful improvements in drain cleaners particularly for sinks and has for its primary object to provide, in a manner as hereinafter set forth, a

device of this character embodying a novel construction and arrangement through the medium of which water under pressure from a conventional faucet may be conveniently utilized for the purpose of Vremoving obstructions from the drain.

Another very important object of the invention is to provide a drain cleaner of the aforementioned character which embodies novel means for connecting said cleaner to the drain in a manner to prevent leakage even though the water be under considerable pressure.

Other objects of the invention are to provide a drain cleaner of the character described which will be comparatively simple in construction, strong, durable, highly efficient and reliable in use, compact and which may be manufactured at lowcost.

All of' the foregoing and still further objects and advantages of the invention will become apparent from a study of the following specification, taken in connection with the accompanying drawings wherein like characters of reference designate corresponding parts throughout the several views, and wherein:-

Figure 1 is a view in side elevation of the invention, showing the same connected and ready for use, the sink being illustrated in vertical section.

Figure 2 is a vertical sectional View through the lower portion of the device.

Figure 3 is a View in horizontal section, taken substantially on the line 3--3 of Figure 2.

Figure 4 is a bottom plan view of the invention.

Figure 5 is a detail view in perspective of the rigid connecting pipe or tube.

Figure 6 is a detail view in perspective of the slidable sleeve.

Figure 7 is a detail View in perspective of the gasket.

Referring now to the drawings in detail, it will be seen that the reference numeral I designates a conventional sink the bottom 2 of which is provided with a drain 3. The reference numeral 4 designates a water faucet which 'is associated with the sink I inthe usual manner.

The embodiment of the invention which has been illustrated comprises a rigid tube 5 of suitable material the lower end portion of which is adapted to be inserted in the sink drain 3 after the usual strainer has been removed. The lower end portion of the tube 5 has formed therein a plurality of bayonet slots B for the reception of the usual bars in the drain 3 for detachably anchoring said tube 5 therein.

` The lower end portion of the tube 5 is also provided with a plurality of external abutments 'I which provide supports for a washer 8. The reference numeral 9 designates a rubber gasket which encircles the tube 5 and which is adapted to rest on the washer 8. Also encircling the tube 5, above the gasket 9, Vis a metallic sleeve I0 having a beveled lower end II which is engageable in a correspondingly shaped annular groove I2 in the upper face of the gasket 9. It may be well to here state that the elements 8, 9, and I3 are slidable on the tube 5.

The reference numeral I3 designates a dome of flexible rubber having a centrally located opening therein which slidably accommodates the tube 5. The dome I3 is provided with an inturned flange I4 on its bottom f'or engagement with the bottom 2 of the sink I. It will'fbe noted that the upper end of the sleeve Il] is engaged with the dome I3.

The upper end of the tube 5 is connected by a reducing coupling I5 with one end of a flexible conduit or hose I6. The other end of the flexible conduit I6 is connected by suitable means, as at I'I, to the faucet 4. A coil spring I8 encircles the tube 5, a washer I9 being interposed between the lower end of said spring I8 and the domev I3. The upper end of the coil spring I8 is engaged with the shoulder provided by the coupling I5'.

In use, the flexible conduit I6 is connected to the faucet 4 and the tube 5 is inserted in the drain 3 and forced downwardly against the tension of the coil spring I8 to engage the aforementioned crossed bars in said drain in the bayonet slots 6. After the crossed bars in the drain 3 have been engaged in the bayonet slots 6 the tube 5 is turned for locking said tube 5 in position in a manner which is thought to be obvious, As the tube 5 is thus inserted in the drain 3 the rubber gasket 9 and the rubber dome I3 engage the bottom 2 of the sink, thus forcing said gasket and dome, the sleeve I8 and the washer I9 upwardly on the tube 5 against the tension of the coil spring I8. In this manner the bevelled or substantially wedge-shaped lower end II o-f the sleeve I0 is driven hard into the annular V- shaped groove I2 of the rubber gasket 9 in a manner to hold said gasket tightly against the bottom 2 of the sink I around the drain opening and press the inner periphery of said gasket against the tube 5. Of course, to disconnect the device, it is only necessary to rotate thel tube CII in the opposite direction after which said tube is free to be withdrawn from the drain 3. The construction and arrangement is such that leakage in the connection between the device and the drain 3 will be prevented, thus causing all of the water under pressure from the faucet 4 to pass through said drain 3.

It is believed that the main'advantages of a drain cleaner constructed in accordance with the present invention will be readily understood and although a preferred embodiment of the device is as illustrated and described, it is to be understood that changes in the details of construction and in the combination and arrangement of parts may be resorted to which will fall within the scope of the invention as claimed.

What is claimed ist- 1. A sink drain cleaner comprising a tube insertable in the drain, said tube having means for detachably anchoring said tube in the drain, a gasket encircling the tube and engageable with the bottom of the sink, said gasket having a substantially V-shaped annular groove in its upper face, a sleeve slidably encircling the tube and including a substantially beveled lower end engaged in the groove, a coil spring mounted on the tube for yieldingly forcing the sleeve and the gasket downwardly, and means for connecting the tube to a source of Water supply.

2. A sink drain cleaner comprising a tube adapted to be detachably anchored in a drain, a gasket slidably encircling the tube, a sleeve slidably encircling said tube and engaged on the gasket, a iexible dome slidably encircling the tube and engaged on the sleeve, said dome and the gasket being engageable with a sink around the drain, a coil spring encircling the tube for yieldingly urging the dome, the sleeve and the gasket downwardly, and means for connecting the tube to a source of water supply.

3. A sink drain cleaner comprising a rigid tube adapted to be inserted in a drain and hav- .ing means thereon cooperable with means in the drain for detachably anchoring said tube, abutments on said tube, a gasket slidably mounted on the tube above the abutments, a Washer interposed between the gasket and the abutments, said gasket having a substantially V-shaped annular groove in its upper face, a sleeve slidably encircling the tube and including a substantially beveled lower end engageable in the groove, a flexible dome slidably encircling the tube and engaged on the upper end of the sleeve, said dome and the gasket being engageable with the bottom of a sink when the tube is inserted in the drain, a coil spring encircling the tube for yieldingly urging the dome, the sleeve and the gasket downwardly, and a exible conduit for connecting the tube to a source of water supply.

ERNEST A. NAGEL. 

